Specifications

32056L Rev. 2 12/4/01 105SL Maintenance Manual Page 4-31
PREVENTIVE AND CORRECTIVE MAINTENANCE SECTION 4
4. Install media and ribbon, and position the toggle in the center of the print mechanism.
5. Perform the PAUSE Key Self Test by holding the PAUSE key while placing the power
switch to the On (I) position.
NOTE: To increase printhead pressure, loosen the upper knurled nut on the
toggle and adjust the lower toggle knurled nut downwards. To decrease
printhead pressure, loosen the upper knurled nut and adjust the lower
knurled nut upwards.
6. Adjust printhead pressure for the lowest pressure that produces acceptable print
quality. To lock the toggle pressure, tighten the upper knurled nut against the lower
knurled nut.
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Adjusting the printhead position moves the printhead with respect to the platen for optimum
print quality. If satisfactory print quality cannot be achieved or can only be achieved with higher
than normal darkness settings and/or higher than normal printhead pressure, the printhead
may not be in the proper position.
Refer to Figure 4-22 for location of adjustment screws.
NOTE: The thermal elements of the printhead should be aligned just behind top
dead center of the platen roller.
1. Print test labels using the PAUSE Key Self Test.
2. Enter the Configuration mode and set the darkness to achieve as close to optimum
print quality as possible.
3. Refer to Figure 4-22. Loosen the four screws at the top rear of the print mechanism.
NOTES: Make very small adjustments and check the results. Turn the screws
clockwise to move the printhead toward the front of the printer. Turn the
screws counterclockwise to move the printhead toward the back of the
printer.
Special tool (part # 11301) allows adjustment of the printhead location
screws while the printer is running.
4. Adjust the printhead position by turning the two screws located at the back of the print
mechanism equally. Turn both screws one-eighth turn clockwise and observe the
changes in print quality. Turn both screws one-sixteenth turn counterclockwise and
observe the changes in print quality. Due to spring pressure, there may be a dead spot
in the actual printhead movement when changing adjustment direction.
CAUTION:
PRINTHEAD POSITION ADJUSTMENT RARELY NEEDS TO BE
PERFORMED. DO NOT PERFORM THIS ADJUSTMENT UNLESS YOU
HAVE BEEN TRAINED TO DO SO. IF THE PROCEDURE IS NOT DONE
CORRECTLY, PRINT QUALITY WILL BE ADVERSELY AFFECTED.